/* Lazily constructed wrapper.

   This file is part of khipu.

   khipu is free software: you can redistribute it and/or modify
   it under the terms of the GNU Lesser General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public License
   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */

#ifndef __KP_UTILS_LAZY__
#define __KP_UTILS_LAZY__   1

#include "../defs.hpp"

KP_DECLS_BEGIN

template <class T>
union lazy
{
  alignas (alignof (T)) char buf[sizeof (T)];

  T* ptr ()
    {
      return ((T *)&this->buf[0]);
    }

  T& get ()
    {
      return (*this->ptr ());
    }
};

KP_DECLS_END

#endif
